Hydrodeoxygenation catalyst for biological oil and fat as well as preparation and application of hydrodeoxygenation catalyst

A deoxygenation catalyst, bio-oil technology, applied in the direction of metal/metal oxide/metal hydroxide catalyst, physical/chemical process catalyst, preparation of liquid hydrocarbon mixture, etc. Application limitations, poor catalyst stability, etc., to achieve the effects of excellent hydrodeoxygenation capacity, strong hydrodecarboxylation/decarbonylation capacity, and improved stability
CN114522697APending Publication Date: 2022-05-24DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
Publication Date
2022-05-24

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Abstract

The invention discloses a catalyst for preparing alkane through catalytic hydrodeoxygenation of biolipid and application of the catalyst, and belongs to the new technical field of biological energy. Comprising the following steps: (1) soaking gamma-Al2O3 in a Ni-containing soluble metal salt solution, and then drying and roasting to generate a nickel aluminate spinel structure on the surface of Al2O3; (2) dipping Al2O3 with a nickel aluminate spinel structure on the surface as a carrier in a soluble metal salt solution of a rare earth element, and then drying and roasting; and (3) dipping soluble metal salt of Ni, Mo or / and W, drying and roasting to obtain the supported metal catalyst. The catalyst is used for carrying out hydrodeoxygenation reaction on a trickle bed reactor by taking biolipid as a raw material, the conversion rate can reach 100%, and the oil product yield can reach 82%. The catalyst provided by the invention has stable surface properties. In addition, the catalyst can replace a sulfurized catalyst for a traditional hydrodeoxygenation reaction, so that the harm of sulfides to the environment is avoided, and the catalyst is suitable for industrial production.
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Description

technical field

[0001] The invention belongs to the new technology field of biological energy, and in particular relates to a non-sulfided catalyst for catalyzing the hydrodeoxygenation of biological oils and fats to prepare straight-chain alkanes and its application. Background technique

[0002] With the increasing consumption of non-renewable resources, the increasing price of fossil energy and the increasingly stringent environmental protection requirements, energy shortages and energy conservation and emission reduction have restricted economic development.

[0003] As a kind of abundant and renewable resource, bio-oil is a potential new energy source. The main component of bio-oil is higher fatty acid ester, which has relatively large relative molecular weight and high oxygen content (generally as high as 35% to 60%), so it must be refined by hydrodeoxygenation to reduce the oxygen content and improve its quality before it can be used as a biological oil. Motor fuel a...

Claims

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